Ryś, Maria, and Elżbieta Trzęsowska-Greszta. “Shaping and Development of Mental Immunity”. Kwartalnik Naukowy Fides et Ratio 34, no. 2 (June 30, 2018): 164–196. Accessed December 23, 2025. https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/522.